UkuKhetha iSithuba soFakelo lokuKhanya kobuNgqibo

There’s no one-size-fits-all standard for this question.

Ngokubanzi, kumzi-mveliso onobude obuziimitha ezintathu, izibane ezingaphantsi kwe-40W zihlala ziqelelene ngeemitha ezimbini ukuya kwezintathu. Kwizithuba ezingaphezulu kweemitha ezintathu ubude, 50-70Izixhobo zokulungisa ziyafuneka, ifakwe kwizithuba zeemitha ezine. Nangona kunjalo, the specific needs depend on your requirements for lighting efficiency.